Rename Compiler.runCompiler -> runInternal.

tests/compiler/dart2js/simple_inferrer_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'package:expect/expect.dart';
 import "package:async_helper/async_helper.dart";
 import 'package:compiler/src/types/types.dart' show TypeMask;
 import 'type_mask_test_helper.dart';
 
 import 'compiler_helper.dart';
@@ skipping 708 matching lines @@
   testReturnNull5();
   testReturnNull6();
   testReturnNotEquals();
 }
 """;
 
 void main() {
   Uri uri = new Uri(scheme: 'source');
   var compiler = compilerFor(TEST, uri);
   compiler.diagnosticHandler = createHandler(compiler, TEST);
-  asyncTest(() => compiler.runCompiler(uri).then((_) {
+  asyncTest(() => compiler.run(uri).then((_) {
     var typesTask = compiler.typesTask;
     var typesInferrer = typesTask.typesInferrer;
     var world = compiler.world;
 
     checkReturn(String name, type) {
       var element = findElement(compiler, name);
       Expect.equals(
           type,
           simplify(typesInferrer.getReturnTypeOfElement(element), compiler),
           name);
@@ skipping 129 matching lines @@
     checkReturn('testSpecialization3', typesTask.uint31Type.nullable());
     checkReturn('testReturnNull1', typesTask.nullType);
     checkReturn('testReturnNull2', typesTask.nullType);
     checkReturn('testReturnNull3', typesTask.dynamicType);
     checkReturn('testReturnNull4', typesTask.nullType);
     checkReturn('testReturnNull5', typesTask.nullType);
     checkReturn('testReturnNull6', typesTask.dynamicType);
     checkReturn('testReturnNotEquals', typesTask.boolType);
   }));
 }